Sectional boiler.



W. M. BUTLER & E. R. GREELEY.

- ECTIONAL BOILER.

AP TION FILED IAN-23,1915.

1,235,007. vPatentedv 31,1917.

SH 'HEET L ATTORNEYS w. M. BUTLER & E. R. GRE ELEY.

SECTIONAL BOILER.

} APPLICATION FILED JAN-23.1915- .1,235,007. Patented July 31,1917.

3 SHEETS-SHEET 2.

%4;/ZM WITNESSES: Mg IEEN R's ATTORNEYS UNITED STATES PATENT OFFICE.

WILLIAM M. BUTLER AND EARL R. GREELEY, OF SYRACUSE, NEW YORK, ASSIGNORS TO PIERCE, BUTLER & PIERCE MANUFACTURING CORPORATION, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

SECTIONAL BOILER.

Specification of Letters Patent.

Patented July 31, 1917.

Application filed January 23, 1915. Serial No. 4,046.

To all whom it may concern:

Be it known that we, l/VILLIAM M. BUTLER and EARL B. GREELEY, citizens of the United States, and residents of Syracuse, in the county of Onondaga and State of New York, have invented a certain new and useful Sectional Boiler, of which the following is a specification.

This invention relates to sectional boilers and has for its object a particularly simple and cfiicient construction whereby the heating surface of the boiler is increased, and it consists in the novel features of construction hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings, in which like characters designate corresponding parts in all the views.

Figure 1 is an elevation of a section of this boiler, the grate being also shown and the base or fire box being shown in section.

Figs. 2 and 3 are sectional views, parts being omitted, taken respectively on lines A-A, and B, B, Fig. 1.

1 designates the intermediate sections of the boiler, and 2 and 3 the front and rear end sections. 4 and 5 are smoke chambers at the front and rear ends of the boiler, and 6 is a smoke pipe leading from the rear chamber.

7 is the grate, and 8 are the bases upon which the sections are mounted, the bases 8 being the side walls of the ash pit.

Each of the sections 1, 2 and 3 is hollow for receiving the water to be heated, and is formed with hollow marginal walls heads or enlargements 1O abutting against the enlargements 10 of the next sections to form a fire space between the sections in the usual manner. The beads or enlargements terminate at their lower ends in the usual water legs 11. The interiors of the sections are in communication at the lower ends of the water legs at 12 and at the top of the sections as at 13. The intermediate sections 1 and the front section 2 are formed with smoke passages 14 therethrough, those of the front section opening into the front chamber 4.

The means by which the heating area is increased comprises transverse conduits 15 extending through the interiors of the sections and terminating in bosses 16 located on opposite sides of the sections, the bosses having hollow walls the spaces 17 of which open into the interiors of the sections. The bosses project laterally far enough to abut at their ends against the ends of the bosses of the next sections and the spaces of the hollow walls of the bosses also projecting beyond the planes of the faces from which the bosses project. The bosses on the front side of the front section 2 and on the rear side of the rear end section 3 open into the front and rear chambers 4, 5. The conduits and their bosses are cast integral with the sections, and form smoke flues connecting the front and rear chambers. The walls of the bosses are here shown as arranged in rows and those of one row staggered with those of the next row so that each boss is in the path of the products of combustion passing between two of the other bosses.

Owing to the bosses and the hollow walls thereof, the heating surface of the boiler is increased as the heat comes in contact with the inner and outer surfaces of the hollow walled bosses.

In operation, the heat and products of combustion pass from the fire chamber upwardly between the sections 1, 2 and 3 through the passages 14 to the front chamber 4, then rearwardly through the flues formed by the conduits 15 and their bosses 16 to the rear chamber 5. Hence, the heated products of combustion come in contact with the outsides of the bosses and then with the insides thereof and as the walls of the bosses are hollow, the spaces therein are heated on both sides.

What we claim is 1. A section for sectional boilers, the section having a flue or conduit extending therethrough, the fine or conduit projecting beyond the contiguous side face of the section and terminating in a hollow walled boss integral with the section, the space of the hollow walls of the boss also extending beyond said face of the section whereby said space is heated on its outer wall by products of combustion and on its inner side by the products passing through the flue conduits, substantially as and for the purpose described.

2. A section for sectional boilers, the sec-- tion having a plurality of fines or conduits extending therethrough and terminating in hollow walled bosses projecting from opposite sides of the section, the spaces between the walls of the bosses opening into the interior of the section, the space between the walls of the bosses also projecting beyond the face of the section on which the boss is provided, substantially as and for the purpose described.

8. A section for sectional boilers, said section having a plurality of fines or conduits integral therewith extending transversely therethrough and terminating in integral hollow-walled bosses projecting from opposite sides of the section, the space between the walls of the bosses opening into the interior of the section, the space between the walls of the bosses also projecting beyond the face of the section on which the boss is provided, substantially as and for the purpose specified.

A boiler comprising a plurality of hollow sections, each having conduits extending transversely through opposite sides thereof and terminating in bosses projecting from opposite sides of the section, the walls of the bosses being hollow and the spaces within said hollow walls opening into the interior of the section, and the bosses of each section abutting at their ends against the bosses of the next section whereby said conduits and their bosses form smoke fines, the space between the walls of the bosses also projecting beyond the face of the section on which the boss is provided, substantially as and for the purpose described.

A boiler comprising sections arranged side by side, each having conduits extending therethrough and beyond the opposing sides of the sections and terminating in hollow walled bosses integral with the sections, the spaces of the hollow walls also projecting beyond the opposing sides of the respective sections whereby the interiors of the hollow walled bosses are heated on their outer sides by the products of combustion passing be tween the sections and on their inner sides by the products of combustion passing through the bosses, and marginal flanges projecting from the sections for inclosing spaces between the sections, substantially as and for the purpose specified.

6. Aboiler comprising hollow sections and having walls for confining the heat spaces between the sections, the sections also having conduits opening through their opposing faces, the conduit on one of the sections terminating in a hollow walled boss projecting into the space between the sections and abutting against the end of the conduit of the other section, the space of the hollow wall of the boss also projecting beyond the sides of the section on which the boss is provided whereby the space of said boss receives heat from the products of combustion passing between the sections and also through the conduits, substantially as and for the purpose set forth.

7. A section for sectional boilers, the section having a plurality of fines or conduits extending therethrough and terminating in hollow walled bosses projecting from opposite sides of the section, the spaces between the walls of the bosses opening into the interior of the section, the bosses being arranged in rows and those of one row being staggered with those of the next row, substantially as and for the purpose specified.

8. A sectional boiler comprising chambers at its opposite ends, the intermediate sections of the boilers having passages connecting the spaces between said sections, and one end section having passages opening into one of said chambers, the sections also having integral conduits extending therethrough and terminating in integral bosses on opposite sides of the sections, the bosses of each section abutting at their ends against the bosses of the next section and the bosses on the front side of the front end section opening into the front chamber, and those of the rear side of the rear section opening into the rear chamber, the conduits and the bosses forming smoke fiues connecting the chambers, substantially as and for the purpose set forth.

9. A sectional boiler comprising chambers at its opposite ends, the intermediate sections of the boiler having passages connecting the spaces between said sections, and one end section having passages opening into one of said chambers, the sections also having integral conduits extending therethrough and terminating in integral hollowwalled bosses on opposite sides of the sections, the bosses of each section abutting at their ends against the bosses of the next section and the bosses on the front side of the front section opening into the front chamher, and those of the rear side of the rear section opening into the rear chamber, the conduits and the bosses forming smoke tlues connecting the chambers, and the spaces within the hollow walls of the bosses opening into the interiors of the sections, substantially as and for the purpose described.

In testimony whereof, we have hereunto signed our names in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, and State of New York, this l th day of November, 1914:.

lVlLLL XM M. BUTLER. EARL GREELEY.

Witnesses:

S. DAVIS, J. GLAZIER.

Copies 01 this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

